Thank you Ripley and Pinky for your comments and praise
I'll reply to each of you individually if that's ok?
Ripley: I can see your point about the sandbags now that you mention it. Unfortunately, it's a problem with the S&S kit and the Rubicon Sherman. There's a chance that the bags don't obscure the periscopes on the Warlord Sherman kit as the sandbags were designed with that kit in mind. For the future I would recommend using a dremmel to remove the left hand side bags from the top and then re-sculpting them to be lower and flatter. Sounds like a lot of work!!
I didn't realise the storage box opened the other way, woops! I built it using a scale modellers forum post as a reference here:
http://www.network54.com/Forum/110741/thread/1378568484/M4A3+Sherman+Calliope+WIPI didn't check any real photos. Damn it, oh well, it's done now! With regards to the lift rings, I can add those on with wire easily, I'll just need to check where they go. The Rubicon kit doesn't seem to come with them.
Pinky: Thanks very much. I've got a steel ruler and I always use a very sharp Stanley blade but I can never get perfect right angles. It's very annoying. I think I'll have to slash out on a whole repertior of different plasti-cards soon as I can certainly see the benefits of having different strips.
Ahh that's very interesting and I hadn't thought about the back blast from the rockets incinerating everything! Makes total sense now that you mention it
In that case, I think I'll hold off adding the stowage then, I can use it for my other vehicles instead.
Both: Sadly I don't own an air brush yet some all my vehicles are hand painted. First I base coated it black (GW) then I based it with army painter's army green. Using a large brush, I painted 3+ thin coats of Vallejo brown violet to get a consistent even cover. Next I apply a wash of GW's camoshade to areas that include detail such as the engine block and hatches etc... Then I lightly dry brush some areas with increasingly lighter shades by mixing in German beige to brown violet. I also applied a sharp highlight around the hull lines and the turret curves using brown violet and German beige. After that I apply any transfers, paint any lettering and weather as appropriate. I hope that helps. I'll try and produce a blog post with pictures when I get round to the Jumbo.
Edit: Thank you ultravanillasmurf for the plasticard tips. Do you have any photos of your Shermans?